Trace number 2668688

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerobjective functionCPU timeWall clock time
PB/CT 0.1? (MO) 54.3257 56.342

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/
pub/fctp/normalized-mps-v2-20-10-n370e.opb
MD5SUM2ed7df63a411bcdd93a5895df0fcaa15
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark11864971985
Best CPU time to get the best result obtained on this benchmark1800.74
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 4571140278
Optimality of the best value was proved NO
Number of variables155000
Total number of constraints5150
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints5150
Minimum length of a constraint31
Maximum length of a constraint3000
Number of terms in the objective function 155000
Biggest coefficient in the objective function 4294967296
Number of bits for the biggest coefficient in the objective function 33
Sum of the numbers in the objective function 29700464693312
Number of bits of the sum of numbers in the objective function 45
Biggest number in a constraint 4294967296
Number of bits of the biggest number in a constraint 33
Biggest sum of numbers in a constraint 29700464693312
Number of bits of the biggest sum of numbers45
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c PB/CT 0.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
2.79/2.81	c constraints 5150/0 clauses 0/0 units 59624
2.79/2.81	c vars 155000
29.59/29.68	c objective 123174 + 0

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2668688-1276520840/watcher-2668688-1276520840 -o /tmp/evaluation-result-2668688-1276520840/solver-2668688-1276520840 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668688-1276520840.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.06 3/106 28652
/proc/meminfo: memFree=1849332/2059040 swapFree=4140200/4192956
[pid=28652] ppid=28650 vsize=2488 CPUtime=0
/proc/28652/stat : 28652 (pbct) R 28650 28652 28498 0 -1 4202496 307 0 0 0 0 0 0 0 20 0 1 0 27687965 2547712 229 1992294400 134512640 136485738 4293245232 18446744073709551615 135178844 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28652/statm: 622 229 151 482 0 138 0

[startup+0.0315361 s]
/proc/loadavg: 1.00 1.00 1.06 3/106 28652
/proc/meminfo: memFree=1849332/2059040 swapFree=4140200/4192956
[pid=28652] ppid=28650 vsize=3076 CPUtime=0.02
/proc/28652/stat : 28652 (pbct) R 28650 28652 28498 0 -1 4202496 486 0 0 0 2 0 0 0 20 0 1 0 27687965 3149824 375 1992294400 134512640 136485738 4293245232 18446744073709551615 135416536 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28652/statm: 769 376 151 482 0 285 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 3076

[startup+0.101541 s]
/proc/loadavg: 1.00 1.00 1.06 3/106 28652
/proc/meminfo: memFree=1849332/2059040 swapFree=4140200/4192956
[pid=28652] ppid=28650 vsize=5936 CPUtime=0.09
/proc/28652/stat : 28652 (pbct) R 28650 28652 28498 0 -1 4202496 1323 0 0 0 9 0 0 0 20 0 1 0 27687965 6078464 872 1992294400 134512640 136485738 4293245232 18446744073709551615 135864501 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28652/statm: 1484 872 151 482 0 1000 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5936

[startup+0.301557 s]
/proc/loadavg: 1.00 1.00 1.06 3/106 28652
/proc/meminfo: memFree=1849332/2059040 swapFree=4140200/4192956
[pid=28652] ppid=28650 vsize=9960 CPUtime=0.3
/proc/28652/stat : 28652 (pbct) R 28650 28652 28498 0 -1 4202496 2921 0 0 0 29 1 0 0 20 0 1 0 27687965 10199040 2020 1992294400 134512640 136485738 4293245232 18446744073709551615 135869175 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28652/statm: 2490 2020 151 482 0 2006 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 9960

[startup+0.701589 s]
/proc/loadavg: 1.00 1.00 1.06 3/106 28652
/proc/meminfo: memFree=1849332/2059040 swapFree=4140200/4192956
[pid=28652] ppid=28650 vsize=16564 CPUtime=0.69
/proc/28652/stat : 28652 (pbct) R 28650 28652 28498 0 -1 4202496 4850 0 0 0 67 2 0 0 21 0 1 0 27687965 16961536 2922 1992294400 134512640 136485738 4293245232 18446744073709551615 135177527 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28652/statm: 4141 2922 155 482 0 3657 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16564

[startup+1.50165 s]
/proc/loadavg: 1.00 1.00 1.06 2/107 28653
/proc/meminfo: memFree=1832584/2059040 swapFree=4140200/4192956
[pid=28652] ppid=28650 vsize=33968 CPUtime=1.49
/proc/28652/stat : 28652 (pbct) R 28650 28652 28498 0 -1 4202496 8850 0 0 0 146 3 0 0 23 0 1 0 27687965 34783232 6922 1992294400 134512640 136485738 4293245232 18446744073709551615 135565571 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28652/statm: 8492 6922 155 482 0 8008 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 33968

[startup+3.10178 s]
/proc/loadavg: 1.00 1.00 1.06 2/107 28653
/proc/meminfo: memFree=1808900/2059040 swapFree=4140200/4192956
[pid=28652] ppid=28650 vsize=49504 CPUtime=3.09
/proc/28652/stat : 28652 (pbct) R 28650 28652 28498 0 -1 4202496 12666 0 0 0 304 5 0 0 25 0 1 0 27687965 50692096 10738 1992294400 134512640 136485738 4293245232 18446744073709551615 134539116 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28652/statm: 12376 10738 160 482 0 11892 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 49504

[startup+6.30104 s]
/proc/loadavg: 1.00 1.00 1.06 2/107 28653
/proc/meminfo: memFree=1806296/2059040 swapFree=4140200/4192956
[pid=28652] ppid=28650 vsize=49504 CPUtime=6.29
/proc/28652/stat : 28652 (pbct) R 28650 28652 28498 0 -1 4202496 12666 0 0 0 624 5 0 0 25 0 1 0 27687965 50692096 10738 1992294400 134512640 136485738 4293245232 18446744073709551615 135180333 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28652/statm: 12376 10738 160 482 0 11892 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 49504

[startup+12.7016 s]
/proc/loadavg: 1.00 1.00 1.06 2/107 28653
/proc/meminfo: memFree=1806296/2059040 swapFree=4140200/4192956
[pid=28652] ppid=28650 vsize=49504 CPUtime=12.69
/proc/28652/stat : 28652 (pbct) R 28650 28652 28498 0 -1 4202496 12666 0 0 0 1264 5 0 0 25 0 1 0 27687965 50692096 10738 1992294400 134512640 136485738 4293245232 18446744073709551615 135180333 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28652/statm: 12376 10738 160 482 0 11892 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 49504

[startup+25.5006 s]
/proc/loadavg: 1.00 1.00 1.06 2/107 28653
/proc/meminfo: memFree=1806296/2059040 swapFree=4140200/4192956
[pid=28652] ppid=28650 vsize=49504 CPUtime=25.48
/proc/28652/stat : 28652 (pbct) R 28650 28652 28498 0 -1 4202496 12666 0 0 0 2543 5 0 0 25 0 1 0 27687965 50692096 10738 1992294400 134512640 136485738 4293245232 18446744073709551615 135180333 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28652/statm: 12376 10738 160 482 0 11892 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 49504

[startup+51.1007 s]
/proc/loadavg: 1.00 1.00 1.06 2/107 28655
/proc/meminfo: memFree=446884/2059040 swapFree=4140200/4192956
[pid=28652] ppid=28650 vsize=1439732 CPUtime=51.08
/proc/28652/stat : 28652 (pbct) R 28650 28652 28498 0 -1 4202496 384287 0 0 0 4944 164 0 0 25 0 1 0 27687965 1474285568 354561 1992294400 134512640 136485738 4293245232 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28652/statm: 359933 354562 197 482 0 359449 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 1439732



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+54.1009 s]
/proc/loadavg: 1.00 1.00 1.06 2/107 28655
/proc/meminfo: memFree=7916/2059040 swapFree=4140200/4192956
[pid=28652] ppid=28650 vsize=1874520 CPUtime=54.13
/proc/28652/stat : 28652 (pbct) R 28650 28652 28498 0 -1 4204544 496404 0 0 0 5203 210 0 0 25 0 1 0 27687965 1919508480 466678 1992294400 134512640 136485738 4293245232 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28652/statm: 468630 466678 199 482 0 468146 0
Current children cumulated CPU time (s) 54.13
Current children cumulated vsize (KiB) 1874520

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

Sending SIGKILL to process tree (bottom up)

Sending SIGKILL to -28652

Solver just ended. Dumping a history of the last processes samples

[startup+54.2579 s]
/proc/loadavg: 1.00 1.00 1.06 2/107 28655
/proc/meminfo: memFree=7916/2059040 swapFree=4140200/4192956
[pid=28652] ppid=28650 vsize=1874520 CPUtime=54.13
/proc/28652/stat : 28652 (pbct) S 28650 28652 28498 0 -1 4194304 496405 0 0 0 5203 210 0 0 25 0 1 0 27687965 1919508480 466679 1992294400 134512640 136485738 4293245232 18446744073709551615 135319262 0 16384 4096 16387 18446604437816981696 0 0 17 1 0 0 0
/proc/28652/statm: 468630 466679 199 482 0 468146 0
Current children cumulated CPU time (s) 54.13
Current children cumulated vsize (KiB) 1874520

[startup+55.009 s]
/proc/loadavg: 1.00 1.00 1.06 1/108 28656
/proc/meminfo: memFree=10668/2059040 swapFree=4140192/4192956
[pid=28652] ppid=28650 vsize=1874520 CPUtime=54.13
/proc/28652/stat : 28652 (pbct) S 28650 28652 28498 0 -1 4194304 496405 0 0 0 5203 210 0 0 25 0 1 0 27687965 1919508480 466679 1992294400 134512640 136485738 4293245232 18446744073709551615 135319262 0 16384 4096 16387 18446604437816981696 0 0 17 1 0 0 0
/proc/28652/statm: 468630 466679 199 482 0 468146 0
Current children cumulated CPU time (s) 54.13
Current children cumulated vsize (KiB) 1874520

[startup+55.8021 s]
/proc/loadavg: 1.00 1.00 1.06 1/108 28656
/proc/meminfo: memFree=10668/2059040 swapFree=4140192/4192956
[pid=28652] ppid=28650 vsize=1874520 CPUtime=54.13
/proc/28652/stat : 28652 (pbct) S 28650 28652 28498 0 -1 4194304 496405 0 0 0 5203 210 0 0 25 0 1 0 27687965 1919508480 466679 1992294400 134512640 136485738 4293245232 18446744073709551615 135319262 0 16384 4096 16387 18446604437816981696 0 0 17 1 0 0 0
/proc/28652/statm: 468630 466679 199 482 0 468146 0
Current children cumulated CPU time (s) 54.13
Current children cumulated vsize (KiB) 1874520

[startup+56.2011 s]
/proc/loadavg: 0.92 0.98 1.05 1/108 28656
/proc/meminfo: memFree=10668/2059040 swapFree=4140192/4192956
[pid=28652] ppid=28650 vsize=0 CPUtime=54.18
/proc/28652/stat : 28652 (pbct) R 28650 28652 28498 0 -1 4195332 496405 0 0 0 5203 215 0 0 18 0 1 0 27687965 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/28652/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 54.18
Current children cumulated vsize (KiB) 0

[startup+56.3011 s]
/proc/loadavg: 0.92 0.98 1.05 1/108 28656
/proc/meminfo: memFree=10668/2059040 swapFree=4140192/4192956
[pid=28652] ppid=28650 vsize=0 CPUtime=54.28
/proc/28652/stat : 28652 (pbct) R 28650 28652 28498 0 -1 4195332 496405 0 0 0 5203 225 0 0 18 0 1 0 27687965 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/28652/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 54.28
Current children cumulated vsize (KiB) 0

Child ended because it received signal 9 (SIGKILL)
Real time (s): 56.342
CPU time (s): 54.3257
CPU user time (s): 52.0341
CPU system time (s): 2.29165
CPU usage (%): 96.4213
Max. virtual memory (cumulated for all children) (KiB): 1874520

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 52.0341
system time used= 2.29165
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 496405
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2
involuntary context switches= 672

runsolver used 0.091986 second user time and 0.297954 second system time

The end

Launcher Data 

Begin job on node003 at 2010-06-14 15:07:20
IDJOB=2668688
IDBENCH=2292
IDSOLVER=1170
FILE ID=node003/2668688-1276520840
PBS_JOBID= 11173441
Free space on /tmp= 62568 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/pub/fctp/normalized-mps-v2-20-10-n370e.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668688-1276520840/watcher-2668688-1276520840 -o /tmp/evaluation-result-2668688-1276520840/solver-2668688-1276520840 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668688-1276520840.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 2ed7df63a411bcdd93a5895df0fcaa15
RANDOM SEED=1353525891

node003.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.251
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.50
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.251
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1849860 kB
Buffers:         25840 kB
Cached:         104600 kB
SwapCached:       5604 kB
Active:          48140 kB
Inactive:        94564 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1849860 kB
SwapTotal:     4192956 kB
SwapFree:      4140200 kB
Dirty:           10568 kB
Writeback:           0 kB
AnonPages:       10896 kB
Mapped:          12912 kB
Slab:            44548 kB
PageTables:       4008 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   183200 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62564 MiB
End job on node003 at 2010-06-14 15:08:17